<template>
  <div>
    <el-card class="box-card">
      <el-form autoComplete="on"
               :model="loginForm"
               :rules="loginRules"
               ref="loginForm"
               label-position="left">
        <div style="text-align: center">
          <!--<svg-icon icon-class="login-mall" style="width: 56px;height: 56px;color: #409EFF"></svg-icon>-->
          <svg-icon icon-class="login-mall" />
        </div>
        <h2 class="login-title color-main">后台管理系统</h2>
        <el-form-item prop="username">
          <el-input name="username"
                    type="text"
                    v-model="loginForm.username"
                    autoComplete="on"
                    placeholder="请输入用户名">
          <span slot="prefix">
            <svg-icon icon-class="user" class="color-main"></svg-icon>
          </span>
          </el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input name="password"
                    :type="pwdType"
                    @keyup.enter.native="handleLogin"
                    v-model="loginForm.password"
                    autoComplete="on"
                    placeholder="请输入密码">
          <span slot="prefix">
            <svg-icon icon-class="password" class="color-main"></svg-icon>
          </span>
            <span slot="suffix" @click="showPwd">
            <svg-icon icon-class="eye" class="color-main"></svg-icon>
          </span>
          </el-input>
        </el-form-item>
        <el-form-item style="margin-bottom: 60px">
          <el-button style="width: 100%" type="primary" :loading="loading" @click.native.prevent="handleLogin">
            登录
          </el-button>
        </el-form-item>
      </el-form>
    </el-card>
  </div>
</template>

<script>
import {isvalidUsername} from '@/utils/validate';
  export default {
    name: "index",
    data() {
      const validateUsername = (rule, value, callback) => {
        if(!isvalidUsername(value)){
          callback(new Error('请输入正确的用户名'))
        }else {
          callback()
        }
      };

      const validatePass = (rule, value, callback) => {
        if (value.length < 3) {
          callback(new Error('密码不能小于3位'))
        } else {
          callback()
        }
      };

      return {
        loginForm: {
          username: 'admin',
          password: '123456'
        },
        loginRules: {
          username: [{required: true, trigger: 'blur', validator: validateUsername}],
          password: [{required: true, trigger: 'blur', validator: validatePass}]
        },
        pwdType: 'password',
        loading:false
      }
    },
    methods:{
      showPwd(){
        if (this.pwdType === 'password') {
          this.pwdType = ''
        } else {
          this.pwdType = 'password'
        }
      },
      handleLogin(){
        //处理登陆
        this.$refs.loginForm.validate(valid=>{
            if(valid){
                this.loading = true;
                this.$store.dispatch('Login',this.loginForm).then(()=>{
                this.loading = false;
                this.$router.push({path:'/home'})
              }).catch(()=>{
                  this.loading = false;
              })
            }else {
              console.info('参数验证不合法！');
              return;
            }
        })
      }
    }
  }
</script>

<style scoped>
  .box-card {
    width: 480px;
    position: absolute;
    left: 0;
    right: 0;
    margin: 140px auto;
    border-top: 10px solid #409EFF;
  }

  .login-title {
    text-align: center;
  }
</style>
